Excavating and loading device



C. W. BRAUER EXCAVATING AND LOADING DEVICE.

Aug. 6, 1957 4 Sheeins-SheeiI l Filed Sepl'..V 3, 1954 Aug. s, 1957 C.w. BRAUER 2,801,479

EXCAVATING AND LOADING DEVICE Filed Sept. 3, 1954 4 Sheets-Sheet 2INVENToR.

CHARLESW. Banyan. BY

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nited States Patent O EXCAVATING AND LOADING DEVICE Charles W. Brauer,Peoria, ni.

Application September 3, 1954, Serial No. 453,991

3 Claims. (Cl. 37-189) j This invention relates to excavating andloading devices.

An object of the invention is to provide an improved excavating andloading device which is designed especially but not exclusively to beoperated by and mounted upon a mobile vehicle, and to depend from thevehicle to operate upon ground surfaces which decline from the surfaceupon which the vehicle is supported.

Another object of the invention is to provide an excavating and loadingdevice of the above indicated character which may quickly and easily bemoved upwardly or downwardly along a declining ground surface or shiftedbetween spaced points thereon.

A further object of the invention is to provide an excavating andloading device of the character indicated above in which the materialexcavated is immediately conveyed to one side of the4 digger element andthen raised to a loading outlet while remaining to said one side of thedigger element.

Other objects and advantages ofthe inventionwill appear from thefollowing description considered in conjunction with the attacheddrawings in which:

Figure 1 is a side elevational view of a device of the present inventionmounted upon a mobile carrier;

Figure 2 is a rear elev-ational view,jon an enlarged scale and partiallyin section, of said device;

Figure 3 is a side elevational view taken from the side opposite thatshown in Figure 1, and on an enlarged scale;

Figure 4 is a vertical section taken -along the line 4 4 of Figure 2;

Figure 5 is a horizontal section taken along the line 5-5 of Figure 3;

Figure 6 is a vertical section taken along the line 6-6 of Figure 5; and

Figure 7 is a horizontal section taken along the line 7-7 of Figure 1,on an enlarged scale, divided in two parts for purposes of arrangementon the sheet.

Referring now to the drawings in more detail, the reference numeral 15designates generally a mobile carrier including a frame 16 and a boom17, the boom having its lower end connected to the frame 16 for swingingmovement about a horizontal axis. The carrier 15 also includesconventional ground engaging gear, diagrammatically shown at 18, uponwhich the frame 16 is rotatably mounted, and cable drums 19 and 2t)mounted upon the frame 16. A first cable 21 is pulleysupported on theupper end of the boom 17 and has one end connected to the drum 19. Asecond cable 22 also has one end connected to the drum 19. Operativelyconnected to the other ends of the cables 21 and 22 is an excavating andloading device, generally designated 23, which embodies the presentinvention.

The device 23 includes an upstanding housing 24. The other end of thecable 21 is attached to the top of the housing 24 by means of a hook 27which is engaged in an eye 28 projecting from the top of the housing 24.The other end of the cable 22 is attached to an eye 29 carried fiice bythe bight portion 31 of a U-shaped frame 31 having the legs 31 supportedby the side walls 26 of the housing 24. A pair of spaced wheels 41 aresecured to a forward part of the underside of the housing 24, adjacenteach end thereof, the wheels 41 serving to control the depth of acutting drum 32 rotatably journalled in the side or end walls of thehousing 24, with the cables 21 and 22 controlling the mobilitybackwardly and forwardly on a ground surface.

The cutting drum 32 is positioned transversely of and within the housing24 and projects rearwardly through an opening 25, the drum 32 beingmounted upon a shaft 33 journalled in the side or end walls of thehousing 24. The opening 25 is formed partly in the rear wall 26 and inthe bottom of the housing 24. Arranged about and projecting from theperiphery of the drum 32, is a plurality of digging teeth 34, the teeth34 operating through the opening 25 in the housing 24. The/teeth 34 arearranged in staggered longitudinal rows along the drum surface, as shownin Figure 2, and have at radial surfaces 35 facing in the.direction ofrotation of the drum and an arcuate surface 36 facing in the oppositedirection.

Positioned transversely of and within the housingV 24 on a level belowthe axis ofthe drum 32, is a rotatable screw conveyor 37, the conveyor37being adjacent the front wall 3S of the housing l24 in a position toreceive material dug from a ground surface, generally designated 39, bythe teeth 34 when the drum 32 is rotated. Aportion of the bottom of thehousing'24 is so shaped as to cooperate with the teeth 34 in guidingmaterial dug by the teeth 34 to the conveyor 37, is indicated at 4t).

On the outside of one side of the housing 24, is a rotary blower 42which is in communication with one end of the conveyor 37 through anopening provided in said one side. The blower 42 includes a rotary shaft44 journalled in the blower casing 43 and a plurality of blades 45extending radially from the shaft 44.

Connected to the blower 42 is the lower end of a conduit 46 fordischarging the excavated material received in the blower 42 from thescrew conveyor 37. The conduit 46'has its free end'47 raised above theground level adjacent the carrier 15 for discharging the materialpassing through the conduit 46 into ka waiting vehicle or hopper. Theconduit 46 consists of a plurality of telescoping sections 4S anon-telescoping discharge section 49 which is secured in the raisedposition above referred to, the sections 48 being formed withinterlocking longitudinally extending grooves 50, as shown in Figure 7,where necessary, to prevent the rotation of one section 48 upon another.

Means are operatively connected to the drum 32, the conveyor 37, and theblower 42 for causing rotation thereof said means comprising electricmotors 51 and 52 which are mounted upon the top of the housing 24 andconnected to the elements 32, 37 and 42 by appropriate driving means.The motor 51 is connected directly to gearing 52 which drives the drum32 through sprockets 53 and 54 and a chain 55. Similarly, the motor 51drives the conveyor 37 through sprockets 56 and 57 and a chain 53. Themotor 52 drives the blower 42. through pulleys 59' and 60 and belts 61.

As will be apparent from the foregoing description, the mobile carrier15 may be moved to the edge of a declining ground surface 39 and theexcavating and loading device of the present invention then positionedat any point upon the inclined surface 39 by proper manipulation of theboom 17 and the cables 21 and 22. When positioned at a chosen spot uponthe declining surface 39, the device 23 will rest upon its wheels 41and, in that position, the teeth 34 of the drum 32, extending outwardlythrough the opening 25, will dig into the surface 39, underlying theopening 25, and will throw the mamay be moved upwardly or downwardlyalong the surface.

39 by the operation of the cable drum 19 toY reel or unreel the cables21 and 22, the telescoping sections 48 of the conduit 46 adjustingthemselves to the altered position of the device 23. Moreover, by theelevation of the boom 17 and the rotation ofvthe frame 16 upon theground engaging gear 18, the device 23 may be shifted from one positionon the ground surface 39 to another position spaced therefrom withoutthe diiiiculty and inconvenience of moving the device 23valong theintervening ground surface. By virtue of the conveyor 37 and thearrangement of the conduit 46, the material excavated is movedimmediately out of the line of operation of the drum 32 and is conveyedto the discharge point 47 without again being brought into the lineV ofoperation of the drum 32.

What is claimed is:

1. In an excavating and loading device, a housing having top, bottom andend walls, and front and rear walls, said rear and bottom walls togetherhaving an opening therein extending across the housing, a cutting drumwithin the housing and journaled on said end walls and projectingrearwardly through said opening, a screw couveyor'mounted within thehousing adjacent to said front wall and said bottom wall, one end wallhaving an opening registered with one endy of the screw conveyor, anexterior blower casing mounted on said one end wall in communicationwith the last mentioned opening, a blower mounted within said blowercasing, a discharge conduit leading from the blower casing, and drivemeans on the housing operatively connected to the cutting drum, thescrew conveyor and the blower.

2. In an excavating and loading device, a housing having top, bottom andend walls, and front and rear walls, said rear and bottom walls togetherhaving an opening therein extending across the housing, a cutting drumwithin the housing and journaled on said end walls and projectingrearwardly throughsaid opening, a screw conveyor mounted within thehousing adjacent to said front wall and said bottom wall, one end wallhaving an opening registered with one end of the screw conveyor, anexterior blower casing mounted on said one end wall in communicationwith the last mentioned opening, a blower mounted within said blowercasing, a discharge conduit leading from the blower casing, and drivemeans on the housing operatively connected to the cutting drum, the

Y* screw conveyor and the blower, and ground engaging wheel meanssecured to the housing and projecting below the housing adjacent to saidfront wall.

3. ln an excavating and loading device, a housing having a top, bottomand end walls, and front and rear walls, said rear and bottom wallstogether having an opening therein extending across the housing, acutting drum within the housing and journaled on said end walls andprojecting rearwardly through said opening, a screw conveyor mountedwithin the housing adjacent to said front wall and said bottomv wall,one end wall having an opening registered with one end of the screwconveyor, an exterior blower casing mounted on said one end wall incommunication with the last mentioned opening, a blower mounted withinsaid blower casing, a discharge conduit leading from the blower casing,and drive means on the housing operatively connected to the cuttingdrum, the screw conveyor and the blower, and ground engaging wheel meanssecured to the housing and projecting below the housing adjacent to saidfront wall, a frame projecting rearwardly from and secured to saidhousing, and other ground engaging wheel means mounted on and dependingfrom said frame.

References Cited in the tile of this patent UNITED STATES PATENTS401,896 McFarland Apr. 23, 1889 532,183 Pike Jan. 8, 1895 1,515,506McNall Nov. 11, 1924 1,550,311 Foster Aug. 18, 1925 2,633,649 Page Apr.7, 1953 2,671,696 McLean Mar. 9, 1954 FOREIGN PATENTS 346,161 FranceNov. 15, 1905 885,015 Germany July 30, 1953

